How to keep the sights healthy in the age of smartphone.

Smartphone has become a daily necessity, but its overuse could bring a healthy adverse effect. Especially, it could cause a significant damage to the eyes. What would be a proper way to use a smartphone while keeping the eyes healthy?

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1.After the use of a smartphone for 20 minutes, take a 20-second recess.

2.Keep the font size large enough to have a proper distance from a smartphone.

3.The brightness of a smartphone should be kept at a proper level.

4.ave eye-beneficial food products. Red ginseng could be your option. Red ginseng is highly effective for preventing and treating of dry eye syndrome and cataract.